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Bosch Vauxhall/Saab coil pack

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Sorry to dig up an old thread but has anyone else tried this? I'm in need of a new coilpack and I'm tempted to try the Saab coilpack as I don't seem to have much luck with the VW/Beru ones. Is there much of an improvement in engine smoothness/responsiveness?

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Just did this on my car and all I can say is, wow. It's smoother, sounds better (engine sounds like its gowling) and it pulls so much harder, especially at the top of the rev range.

 

100% recommend.

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Do i buy this?

 

http://www.carsparkplugs.com/1x-0221503002-bosch-ignition-coil.html#.UwHgNPl_tik

 

Yeah if you want to buy new. The coil pack is solid compared to the fragile VR6 ones. Its commonly the plastic bits that fail and that bit goes in the bin with this mod. IMHO, use the Beru stuff but, you will need spade connectors and a longer pigtail, your terminals will be on the top.

 

Also what is that bit of wiring with the four wires and a plug on it from?

 

The pigtail is from an audi, connects to an ignition igniter control unit, 4A0905351, also see post #14.

 

Found some useful info for those trying this from the used approach.

Part Numbers;

* BOSCH: 0221503002

* FERRARI: 165854

* VAUXHALL/OPEL: 1208068

* VAUXHALL/OPEL: 90358386

* VAUXHALL/OPEL: 90444184

* SAAB: 47 70 046

* SCANIA: 4770046

* TOYOTA: 90080? 19005?

 

* Opel - VECTRA A - 2.5 V6 - 1993-1995 - 170hp - 2498cc

* Opel - VECTRA A Hatchback - 2.5 V6 - 1993-1995 - 170hp - 2498cc

* Opel - OMEGA B - 2.5 V6 - 1994-2000 - 170hp - 2498cc

* Opel - OMEGA B - 3.0 V6 - 1994-2001 - 211hp - 2962cc

* Opel - OMEGA B Estate - 2.5 V6 - 1994-2000 - 170hp - 2498cc

* Opel - OMEGA B Estate - 3.0 V6 - 1994-2001 - 211hp - 2962cc

* Opel - CALIBRA A - 2.5 i V6 - 1993-1997 - 170hp - 2498cc

* Saab - 900 Mk II - 2.5 -24 V6 - 1993-1998 - 170hp - 2498cc

* Saab - 900 Mk II Convertible - 2.5 -24 V6 - 1993-1998 - 170hp - 2498cc

* Saab - 900 Mk II Coupe - 2.5 -24 V6 - 1993-1998 - 170hp - 2498cc

* Vauxhall - CAVALIER Mk III - 2.5 V6 - 1993-1995 - 170hp - 2498cc

* Vauxhall - CAVALIER Mk III Hatchback - 2.5 V6 - 1993-1995 - 170hp - 2498cc

* Vauxhall - OMEGA - 2.5 V6 - 1994-2000 - 170hp - 2498cc

* Vauxhall - OMEGA - 3.0 V6 - 1994 - 211hp - 2962cc

* Vauxhall - OMEGA Estate - 2.5 V6 - 1994-2000 - 170hp - 2498cc

* Vauxhall - OMEGA Estate - 3.0 V6 - 1994 - 211hp - 2962cc

* Vauxhall - CALIBRA - 2.5 i V6 - 1993-1997 - 170hp - 2498cc

Edited by science

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Wiring needed from ICM to Coilpack

attachment.php?attachmentid=48051&stc=1&d=13106376786

 

I think this is wrong, I've just fitted one to my 24V engine and followed this diagram, although my connector is at the top, I wired it up with the 12v to the pin furthest away from the blue sticker, the 3 remaining contacts are just controlling the corresponding pair of coils, 1&6, 3&4, 2&5.

anyway started her up and splutered and popped, did some checking with the meter and found that the connector NEAREST the blue label is 12V supply, I ended up moving the all 1 place along, fired up no problem.

So to sumerise, when you fit one with the connector on top,

Just connect them to the corresponding terminals,

far left ICU to far left coilpack

middle left ICU to middle left coilpack

middle right ICU to middle right coilpack

far right ICU to far right coilpack

IGNORE THE NEW COILPACK CYLINDER NUMBERS

[ATTACH=CONFIG]78364[/ATTACH]

[ATTACH=CONFIG]78365[/ATTACH]

Edited by J.C

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I think this is wrong, I've just fitted one to my 24V engine and followed this diagram, although my connector is at the top, I wired it up with the 12v to the pin furthest away from the blue sticker, the 3 remaining contacts are just controlling the corresponding pair of coils, 1&6, 3&4, 2&5.

anyway started her up and splutered and popped, did some checking with the meter and found that the connector NEAREST the blue label is 12V supply, I ended up moving the all 1 place along, fired up no problem.

So to sumerise, when you fit one with the connector on top,

Just connect them to the corresponding terminals,

far left ICU to far left coilpack

middle left ICU to middle left coilpack

middle right ICU to middle right coilpack

far right ICU to far right coilpack

IGNORE THE NEW COILPACK CYLINDER NUMBERS

 

Sorry you've had problems, I've checked the data sheet and you are right.

http://www.bosch-motorsport.de/media/catalog_resources/Double_Fire_Coil_3x2_Datasheet_51_en_2778235019pdf.pdf

Should look like this;

[ATTACH=CONFIG]78373[/ATTACH]

↑ This only works for the base Bosch coilpack 0 221 603 447 ↓ or similar

[ATTACH=CONFIG]78374[/ATTACH]

If in doubt follow continuity from here;

][ATTACH=CONFIG]78375[/ATTACH]

 

 

I suspect your coilpack with the connectors on the top may be a beru one?

Edited by science

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No worries Science,

yeah mines the ****ty Beru one,

interesting that it's "Operating temperature range at outer core -20 to 120°C" gets quite hot in a vr6 engine bay and being bolted to the engine, I've ordered some phenolic washers to stand it off the engine by 7mm http://www.ebay.co.uk/itm/141263556397?var=440371780463&ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649 I might think about slimming down the heat sink as the ignition leads are tight (short) even without the spacers

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No worries Science,

yeah mines the ****ty Beru one,

interesting that it's "Operating temperature range at outer core -20 to 120°C" gets quite hot in a vr6 engine bay and being bolted to the engine, I've ordered some phenolic washers to stand it off the engine by 7mm http://www.ebay.co.uk/itm/141263556397?var=440371780463&ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649 I might think about slimming down the heat sink as the ignition leads are tight (short) even without the spacers

 

Good idea, I'm using one of these;

http://www.verdictmotorsports.com/Volkswagen_12v_VR6_Coil_Insulator_Saver_low_temp_p/0137.htm

You can see it's the brown plate in the picture above.

Still no problem fitting the leads, maybe they are a different make/length.

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Also, cheapest place to buy these (except the ebay seller who accepted my "offer" of £50, then sent me the wrong one, then couldn't find the proper one and refunded my money!!!)is

http://www.vauxhallworldparts.com/vauxhall.php?partnumber=0221503002

Can't comment on performance yet as I cleaned my MAF a bit too much and cleaned it to brokeness

 

That's a great price!

I need one of these for an Omega as it happens.

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Yeah I saw a thread with that spacer featured and someone mentioned phenolic washers, they arrived today, not great quality but I'll fettle them,

I'm running a 24 valve and there is less slack on the leads

Good idea, I'm using one of these;

http://www.verdictmotorsports.com/Volkswagen_12v_VR6_Coil_Insulator_Saver_low_temp_p/0137.htm

You can see it's the brown plate in the picture above.

Still no problem fitting the leads, maybe they are a different make/length.

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Posted (edited)

Pretty sure what we call the Bosch motorsport coilpack is the same as this Saab/GM one on thread -  pigtails off audi 

Edited by Keyo

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14 hours ago, Keyo said:

Pretty sure what we call the Bosch motorsport coilpack is the same as this Saab/GM one on thread -  pigtails off audi 

 

They are quoting the same Bosch part number so will be the same

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